In addition to physical health problems, the virus can have damaging psychological and social effects on survivors, which has now become a major concern among health workers and humanitarian aid organizations. Survivors often have difficulty reintegrating into society after recovery due to the stigma surrounding the disease and face social rejection by their peers.

Sierra Leone declared itself Ebola-free on Saturday. It had been 42 days since any new cases were diagnosed. To mark the occasion, thousands danced in the streets and rapper Block Jones, from Sierra Leone, released a video and song.

Umaru Fofana is one of Africa's most respected journalists. But when he covered the Ebola epidemic in his own country of Sierra Leone, he knew there was no prospect of an evacuation or special medical treatment if he became infected.

The number of infected in Sierra Leone, Liberia and Guinea is less than seven times what it was in February. As a result, people are feeling freer to leave their homes and go back to normal life. But some experts worry that with comfort comes complacency.